Possibility to change advertising timeout

[Andreas]

Hello,

I want to change the advertising timout during runtime. We have two use cases for our device:

1. Batterie mode --> advertising timeout = 2min

2. Power supply --> no advertising timeout (advertising timeout = 0)

Is it possible to change this sofdevice parameter during runtime? If yes, how to do that? ;-)

I am using S120 on a nRF51822.

Regards, BTprogrammer

[Andreas]

Hey, sorry, but I didn`t get it running with the suggested solution. This is my advertising_init() function:

static uint32_t advertising_init(void){
uint32_t      err_code;
ble_advdata_t advdata;
	ble_advdata_t scanrsp;
	
	ble_uuid_t adv_uuids[] = {{BLE_UUID_DEVICE_SERVICE, GRL_DEV_SERVICE_UUID_TYPE}};

// Build and set advertising data.
memset(&advdata, 0, sizeof(advdata));
advdata.name_type             = BLE_ADVDATA_FULL_NAME;
	advdata.include_appearance      = true;
advdata.flags                 = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;
	
	memset(&scanrsp, 0, sizeof(scanrsp));
scanrsp.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
scanrsp.uuids_complete.p_uuids  = adv_uuids;
	//scanrsp.
	
	ble_adv_modes_config_t options = {0};
options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
options.ble_adv_fast_interval = APP_ADV_INTERVAL;
options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;

err_code = ble_advertising_init(&advdata, &scanrsp, &options, on_adv_evt, NULL);
APP_ERROR_CHECK(err_code);
	return err_code;}

It is pretty much the same than in the ble_app_uart example. But if I set APP_ADV_TIMEOUT_IN_SECONDS to zero, the device isn`t accessible via BLE anymore...

To switch between the two modes, I believe I will need the sd_ble_gap_adv_start() function. But in my current implementation, this is handled by the ble_advertising_start() function in ble_advertising.c So where do I get the needed adv_params during runtime? BR